Because we/ others have an expectation of what xmas should be like.
We run around after others, subconsciously wishing to make ‘their' xmas special.
In reality, do we really get the ‘perfect' Xmas? I doubt it. It causes more stress than any other time of year. But those that do get the perfect one, well, well done...
We just feel pressured to get everything ‘right' .
Try to relax, it maybe anticipation, when the day itself comes, you'll be released from all the pressure....x